A fix has been implemented and we are monitoring the results.
Posted Jul 12, 2024 - 09:45 CEST
Identified
Users may experience issues when creating, updating och cancelling calendar items in Outlook Desktop Client. A workaround is to visit the Outlook Web App and perform the same action there: https://outlook.office.com/calendar
Microsoft is investigating this issue and is expecting a solution by the end of Friday (2024-07-05)
Microsoft has released an update that went live today (2024-07-12) that is supposed to fix the issue Microsoft is now monitoring the issue and will update the incident tomorrow with more information